Evolution is no a thing, is not a property of livings things, is a process. And is very simple to understand, things evolve by natural selection, very random small mutations in a species, some goods, some bad, the good ones that are more suitable to adapt to the environment are the ones who are transmitted because the organisms have a small more chance to survive, the bad ones just are discarded because they bring issues to organism and have small chances to survive and transmit the bad mutation in the reproduction. All this plus millions of years and that is evolution, off course if you think that Earth have only like 6000 years and the whole universe is just made for us off course you can't believe in evolution. Personally I would like the christian version of the world that is shown in Supernatural (the TV show), where evolution occurred but guide by God, and he is a bisexual old man who like cats and doesn't care about the world, that sounds more credible than old school religions.